Application of Super-workable concrete to an arch bridge
| Author(s): |
Sakae Ushijima
Kazuki Harada Hideaki Taniguchi Yosifumi Sakai |
|---|---|
| Medium: | conference paper |
| Language(s): | English |
| Conference: | IABSE Symposium: Extending the Lifespan of Structures, San Francisco, CA, USA, August 1995 |
| Published in: | IABSE Symposium San Francisco 1995 [Vol. 1] |
| Page(s): | 239-244 |
| Year: | 1995 |
| DOI: | 10.5169/seals-55188 |
| Abstract: | An arch bridge was designed to harmonize with the surrounding landscape. Steel bars were positioned with a spacing of 100mm to 250mm in the arch rib portion and concrete with high compactability was considered necessary. Due to the problems involved in placing, and to achieve labor saving, it was decided to place the entire cross section of concrete in one operation. To ease the construction process and speed up completion time, it was necessary to use super-workable concrete for both the arch rib and the crown portions of the bridge. This report describes of the preliminary placing experiments of the super-workable concrete carried out before the construction, and the results of quality control at the construction work. |
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